On 15/10/2013 14:44, Peter Weilbacher wrote: > On 2013-09-26 14:42, Peter Weilbacher wrote: >> On one of my machines, I get continuous beeping from the internal >> loudspeaker when I boot a newer kernel (I'm using vanilla-sources). I >> first had that with 3.10.8 and also with 3.10.10, and it continues >> with 3.11.1. > [...] >> In the meantime I left the machine on long enough to discover that it >> stops beeping whenever it is idle long enough and blanks the display. > > Well, this is embarrassing: Since this began I switched the machine on > even less often than before, but yesterday I found out by chance that > the sound did not come from the internal speaker but from the speakers > built into my screen. Now I traced it to the snd-hda-intel kernel module > (noise there if loaded, sound gone when removed with |modprobe -r|). > > Why was the sound never heard on bootup in 3.8.x kernels but is starting > with 3.10.1?
3.8.x defaults to $VOL=$MINIMUM while 3.10.x defaults to $VOL=$SOMETHING_NOT_MINIMAL ?? or maybe the audio feed to snd-hda-intel was busted for years and some kind soul fixed it in 3.10? Diff the drivers in the kernel sources to find out more :-) > > Peter. > > P.S.: At least now I know that the easy workaround is to tune the > (hardware) speaker volume down to 0... > -- Alan McKinnon alan.mckin...@gmail.com
